If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( a )
a = 0
a = 0
a = 0
a in (-oo:0) U (0:+oo)
9/a = 8/a-6 // - 8/a-6
9/a-(8/a)+6 = 0
9/a-8*a^-1+6 = 0
1*a^-1 = -6 // : 1
a^-1 = -6
-1 < 0
1/(a^1) = -6 // * a^1
1 = -6*a^1 // : -6
-1/6 = a^1
a = -1/6
a = -1/6
| 76y+86=y+8 | | 5x^2+28x-12=00 | | -2x/3-3/4=1/4 | | 432*0.08= | | 10/5=2/b-2 | | -5g+2.3=-18.2 | | 4/p=6/9 | | 10/2=n/9 | | 2(u+1)=-2(7u-6)+u | | 908/16= | | 10/p=5/10 | | (2n+1)(n+7)=0 | | 5/13=x/6 | | 2n+3(2t-n)= | | 450*0.05= | | -2a^2+50=0 | | 42.3/3 | | 15w=95 | | 0=(144+-132x+24x^2-1x^3) | | 3x+6=9x+42 | | 3x+23=x+13 | | 3x^2-22x-24=0 | | 4x+5=-x+40 | | y=mx^2+2x+1 | | 12.18=2g+3.88 | | 8(x+8)-3(x+4)=7(2-x) | | 1.4x-5.9=12.3 | | 30x+5y-2=150 | | 4(2w-24)= | | X^2+9x=2x+44 | | 5x-137=78 | | mx^2+2x+1=0 |